It’s recommended to test electrical sockets every 5 years in residential properties and more frequently in commercial settings to ensure ongoing safety and compliance with regulations. In high-risk environments or following significant electrical changes, more frequent testing may be necessary to address potential issues promptly. 

If an appliance fails electrical testing, it should be removed from service immediately and either repaired or replaced to maintain safety standards. Additionally, it's important to document the failure and take preventive measures to avoid similar issues with other appliances. 

Here are some key signs that indicate your property may need testing: 

• If your circuit breakers trip regularly 

• Any unusual smells or scorch marks near sockets or switches 

• Unstable lighting can indicate poor wiring connections or voltage fluctuations 

• Unusual noises from electrical outlets or switches 

• A sudden increase in energy consumption without any new appliances 

• An outdated or damaged fuse box 

• Experiencing mild shocks when touching appliances or switches 

Regular testing helps identify and address these issues, ensuring your property remains safe and compliant with current regulations. 

• Clear Access - Ensure easy access to electrical panels, sockets, and appliances for a thorough inspection. 

• Inform Stakeholders - Notify staff or household members about the testing schedule to minimise disruptions. 

• Remove Obstructions - Clear any furniture or equipment that might obstruct the testing process. 

• Prepare Documentation - Have any relevant documents or previous reports on hand to assist the technicians. 

While there is no specific legal requirement mandating PAT testing in England, it is highly recommended as part of an overall health and safety policy to ensure compliance with electrical safety regulations.